Which type of prescription bottle has approximate volume markings and is not intended for precise measurement?

• A. Amber glass bottles
• B. Child-resistant bottles
• C. Reclosable plastic bottles
• D. Graduated prescription bottles

Answer: (D)

The key idea is that some prescription containers are designed with marks to give an approximate sense of volume, not to provide precise dosing. A graduated prescription bottle has markings along the side to help estimate how much medication is in the bottle or how much to pour. But these marks aren’t calibrated with the accuracy needed for exact dosing—the bottle walls, printing tolerances, and reading height can all introduce variation. For precise measurements, you’d rely on a calibrated device like a syringe or a dropper, not the bottle’s marks. The other bottle types emphasize safety (protecting contents from light, preventing child access) or convenience (being reclosable) rather than providing measurement marks, so they don’t serve the same purpose of approximate volume indication.